A single gene (yes) controls pigmentation of eyes and scales in Heliothis virescens

A yellow-eyed mutant was discovered in a strain of Heliothis virescens, the tobacco budworm, that already exhibited a mutation for yellow scale, y. We investigated the inheritance of these visible mutations as candidate markers for transgenesis. Yellow eye was controlled by a single, recessive, auto...

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Bibliographic Details
Published in:Journal of Insect Science 2001-02, Vol.1 (1), p.1-9
Main Authors: Brown, Thomas M., Cho, Sae-Youll, Evans, Christopher L., Park, Sujin, Pimprale, Satish S., Bryson, Patricia K.
Format: Article
Language:English
Subjects:
Acetylcholinesterase - genetics
Animals
ATP-binding cassette transporter
Base Sequence
Crosses, Genetic
development of compound eye
Eye Color - genetics
Female
Genes, Insect
Genes, Recessive
Genetic Linkage
genetic linkage analysis
Heterozygote
Homozygote
hypomorphic mutation
Insecticide Resistance - genetics
Isocitrate Dehydrogenase - genetics
loss of function
Male
melanin
Models, Genetic
Moths - anatomy & histology
Moths - genetics
Mutation
ommochrome
Pedigree
pigmentation
Pigmentation - genetics
pleiotropy
pteridine
scale color
Sodium Channels - genetics
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Summary:A yellow-eyed mutant was discovered in a strain of Heliothis virescens, the tobacco budworm, that already exhibited a mutation for yellow scale, y. We investigated the inheritance of these visible mutations as candidate markers for transgenesis. Yellow eye was controlled by a single, recessive, autosomal factor, the same type of inheritance previously known for y. Presence of the recombinant mutants with yellow scales and wild type eyes in test crosses indicated independent segregation of genes for these traits. The recombinant class with wild type scales and yellow eyes was completely absent and there was a corresponding increase of the double mutant parental class having yellow scales and yellow eyes. These results indicated that a single factor for yellow eye also controlled yellow scales independently of y. This gene was named yes, for yellow eye and scale. We hypothesize that yes controls both eye and scale color through a deficiency in transport of pigment precursors in both the ommochrome and melanin pathways. The unlinked gene y likely controls an enzyme affecting the melanin pathway only. Both y and yes segregated independently of AceIn, acetylcholinesterase insensitivity, and sodium channel hscp, which are genes related to insecticide resistance.
ISSN:0970-3837
1536-2442
1536-2442
DOI:10.1673/031.001.0101